对标准记处理的改进亚象素细分定位算法

提出一种的适合对准标记图像处理的改进亚象素细分定位算法，并提供了完善这种定位算法的缩小检测窗口的方法。     

Preparation and Surface Characterization of Highly Ordered Polymer/Graphite Nanosheet Composites

Graphite nanosheets obtained from sonicating expanded graphite were coated chemically with magnetite nanoparticles. The modified graphite nanosheets were dispersed in epoxy or unsaturated polyester prepolymer, and subjected to a magnetic field before the suspension solidified. Composites with graphite nanosheets of highly ordered alignment have been prepared via the described approach. Several techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), and optical microscopy were used to characterize the modified graphite nanosheets and the polymer/graphite nanosheet composites.     

柴油机曲轴早期断裂分析

采用宏观断口分析、化学成分分析和显微组织检验等方法对增压柴油发动机曲轴发生断裂的原因进行了分析。结果表明,曲轴材质符合技术要求,而热处理后的校直过程存在问题,由此留下了隐患,造成该曲轴在运行过程中产生疲劳裂纹而断裂。提出了改进措施,杜绝了此类事故的发生。     

上海EBIT装置的机械准直

采用准直望远镜对上海电子束离子阱(EBIT)装置进行机械准直,制定了合理的准直方案,设计了高精度的机械调节机构和良好的准直工艺,并进行了试验.通过准直,各组件的位置精度均达到设计指标,目前上海EBIT可以稳定运行在高压100keV和束流110mA的条件下.     

某微型电动汽车前悬架系统性能分析与优化研究

应用多体系统动力学软件ADAMS/Car建立某微型电动汽车前悬架仿真模型,并进行悬架性能分析研究。针对主销内倾角、前束角、磨胎半径随车轮跳动变化不理想的现象,应用ADAMS_Insight模块进行仿真模型的灵敏度试验分析,选定对前悬架运动特性灵敏度影响较大硬点坐标,采用DOE Response Surface控制策略拟合车轮定位参数及磨胎半径的二次响应面函数,结合MATLAB遗传算法工具箱进行硬点坐标优化。结果表明,ADAMS和MATLAB遗传算法工具箱在悬架定位参数优化中的联合应用,可使前悬架具有较理想的运动特性。     

Understanding the impact of nurses' perception and technological capability on nurses' satisfaction with nursing information system usage: A holistic perspective of alignment

Based on the holistic perspective of ‘alignment’, evaluating the alignment of human–computer interaction is crucial to ensure effective information system implementation and a positive impact on performance. This study aims to examine the impact of alignment between the nurses' perception of NIS (Nursing Information System) performability and technological capability of NIS achieving success on nurses' satisfaction and nursing care performance through the perspectives of alignment as covariation and alignment as profile deviation. A quantitative method and a cross-section design were used to collect data from 531 registered nurses in Taiwan. The results indicate that the coalignment of nurses' perception of NIS performability and the technological capability of NIS achieving success has a positive impact on nurses' satisfaction with NIS usage. Consequently, nurses' satisfaction will increase with the improved performance of nursing care. The results of this research will help the management of NIS application and development within the context of nursing care.     

Self‐Alignment of Patterned Wafers Using Capillary Forces at a Water–Air Interface

Capillary interactions at a water–air interface were used to align a two‐inch glass wafer to a three‐inch silicon wafer. Flat, smooth silica surfaces were patterned with gold millimeter‐scale borders enclosing micrometer‐scale features. The gold features were rendered hydrophobic through the use of self‐assembled monolayers, the silica was wetted with water, and the wafers were pressed together. The assembly snapped into alignment based upon the minimization of the curvature of the meniscus formed at the water–air interface. The accuracy of this alignment was better than one micrometer. Gravitational energy was used to systematically study the alignment force as a function of pattern parameters. These data can be modeled by interfacial energy theory. These experiments identify a clear set of conditions necessary for the use of this technique for high‐precision alignment.     

激光对中装置在机床大修中的应用

文中主要阐述了在金属切削机床大修过程中,如何巧妙运用激光对中原理,简单而又精确地解决主轴箱和导轨的对中问题,实践证明这套激光对中装置结构简单,精确,实用。